I was joking around and decided to build this plugin, and when I finished, I checked SpigotMC, and what do I find? I find a plugin like this, except you drop an ingot! I was sad I didn't implement something cool like that, but I had already finished and was in no mood to start over, so I simply put it on GitHub and prepared to upload the project.
More Information: The commands are: /teamtreesjungle (spawns in jungle tree) /teamtreesdarkoak (spawns in dark oak tree) /teamtreesredwood (spawns in redwood tree) and finally /teamtreesoak (oak tree). It's also important to mention that you have to be standing on grass for this to work.